The photorealism king - the most widely used open-weight image generation model
Open-weight Dev/Schnell are free to self-host; Pro via API from $0.04/generation
What Is Flux.1 Pro?
Flux.1 Pro is an AI image generation model developed by Black Forest Labs. Flux.1 from Black Forest Labs has rapidly become the industry standard for photorealistic AI image generation, surpassing Stable Diffusion and rivaling Midjourney on quality. The Flux architecture (rectified flow transformers) enables exceptionally detailed, photorealistic outputs with accurate hands, faces, and text. Flux.1 Pro is available via API and powers dozens of apps - from Freepik to Fal.ai. Flux.1.1 Pro Ultra delivers 4MP resolution. The open-weight Flux.1 Dev/Schnell variants can be self-hosted.
Overview
| Description | Flux.1 from Black Forest Labs has rapidly become the industry standard for photorealistic AI image generation, surpassing Stable Diffusion and rivaling Midjourney on quality. The Flux architecture (rectified flow transformers) enables exceptionally detailed, photorealistic outputs with accurate hands, faces, and text. Flux.1 Pro is available via API and powers dozens of apps - from Freepik to Fal.ai. Flux.1.1 Pro Ultra delivers 4MP resolution. The open-weight Flux.1 Dev/Schnell variants can be self-hosted. |
| Developer | Black Forest Labs |
| Version | Flux.1 Pro / Flux.1.1 Pro Ultra |
| Category | Image Model |
| Status | API / Dev |
| Pricing | Open-weight Dev/Schnell are free to self-host; Pro via API from $0.04/generation |
Capabilities7
| 1 | Photorealistic human portraits (accurate hands, faces) |
| 2 | Accurate text rendering in images |
| 3 | High-detail product photography |
| 4 | Consistent style across generations |
| 5 | 4MP output with Pro Ultra |
| 6 | ControlNet/LoRA fine-tuning (Dev variant) |
| 7 | Image-to-image with high fidelity |
Model Tiers
| Tier | Speed | Quality | Pricing |
|---|---|---|---|
| Flux.1 Schnell | ~2s | Good | Open-weight, free self-host |
| Flux.1 Dev | ~10s | Excellent | Open-weight, free self-host |
| Flux.1 Pro | ~15s | Best | API-only, ~$0.055/image |
| Flux.1.1 Pro Ultra | ~20s | Best (4MP) | API-only, ~$0.06/image |
Output Specs
| Max Resolution | 4MP (2048×2048+) with Pro Ultra |
Prompting Tips
Prompt
Portrait of a professional woman in her 30s, natural lighting, shot on Sony A7R V, 85mm f/1.4, bokeh background, studio white backdrop, business attire, confident expression, 8K
Expected Result
Studio-quality LinkedIn-ready headshot
Prompt
Commercial product photo of a glass perfume bottle on white marble surface, soft shadow, gradient lighting, luxury brand aesthetic, macro lens, photorealistic, --ar 1:1
Expected Result
E-commerce ready product shot
Prompt
Motivational quote card, large bold centered text reading 'YOUR NEXT MOVE', dark navy blue background, gold typography, minimalist design, high contrast
Expected Result
Eye-catching quote image with readable text
Best Fit
Best For
- ✓Photorealistic social content
- ✓Product photography
- ✓Portrait generation
- ✓Text-accurate graphics
- ✓E-commerce visuals
Watch Out For
- ✗Pure artistic/painterly styles - Midjourney leads here
- ✗Without fine-tuning for consistent brand characters
Access Via
Frequently Asked Questions
What is Flux.1 Pro?
Flux.1 Pro is a image AI model developed by Black Forest Labs. The photorealism king - the most widely used open-weight image generation model. Flux.1 from Black Forest Labs has rapidly become the industry standard for photorealistic AI image generation, surpassing Stable Diffusion and rivaling Midjourney on quality. The Flux architecture (rectified flow transformers) enables exceptionally detailed, photorealistic outputs with accurate hand...
How much does Flux.1 Pro cost?
Open-weight Dev/Schnell are free to self-host; Pro via API from $0.04/generation. Flux.1 Schnell: Open-weight, free self-host; Flux.1 Dev: Open-weight, free self-host; Flux.1 Pro: API-only, ~$0.055/image; Flux.1.1 Pro Ultra: API-only, ~$0.06/image
What can Flux.1 Pro create?
Flux.1 Pro is best for: Photorealistic social content, Product photography, Portrait generation, Text-accurate graphics, E-commerce visuals. Key capabilities include Photorealistic human portraits (accurate hands, faces), Accurate text rendering in images, High-detail product photography, Consistent style across generations.
How do you access Flux.1 Pro?
Flux.1 Pro is available through: Fal.ai (api), Replicate (api), Freepik AI (native), ComfyUI (Dev/Schnell) (marketplace).
Is Flux.1 Pro free to use?
Yes, Flux.1 Pro offers free access. Open-weight, free self-host.